src/renderer-clutter.c

   1 /*
   2  * Geeqie
   3  * (C) 2006 John Ellis
   4  * Copyright (C) 2008 - 2012 The Geeqie Team
   5  *
   6  * Author: John Ellis
   7  * Author: Vladimir Nadvornik
   8  *
   9  * This software is released under the GNU General Public License (GNU GPL).
  10  * Please read the included file COPYING for more information.
  11  * This software comes with no warranty of any kind, use at your own risk!
  12  */
  13
  14 #include <stdio.h>
  15 #include <stdlib.h>
  16 #include <string.h>
  17 #include <math.h>
  18
  19 #include "main.h"
  20 #include "pixbuf-renderer.h"
  21 #include "renderer-clutter.h"
  22
  23 #include "intl.h"
  24 #include "layout.h"
  25
  26 #include <gtk/gtk.h>
  27
  28 #ifdef HAVE_CLUTTER
  29
  30 /* for 3d texture */
  31 #define COGL_ENABLE_EXPERIMENTAL_API
  32
  33 #include <clutter/clutter.h>
  34
  35 #include <clutter-gtk/clutter-gtk.h>
  36
  37
  38
  39 #define GQ_BUILD 1
  40
  41 #ifdef GQ_BUILD
  42 #include "main.h"
  43 #include "pixbuf_util.h"
  44 #include "exif.h"
  45 #else
  46 typedef enum {
  47         EXIF_ORIENTATION_UNKNOWN        = 0,
  48         EXIF_ORIENTATION_TOP_LEFT       = 1,
  49         EXIF_ORIENTATION_TOP_RIGHT      = 2,
  50         EXIF_ORIENTATION_BOTTOM_RIGHT   = 3,
  51         EXIF_ORIENTATION_BOTTOM_LEFT    = 4,
  52         EXIF_ORIENTATION_LEFT_TOP       = 5,
  53         EXIF_ORIENTATION_RIGHT_TOP      = 6,
  54         EXIF_ORIENTATION_RIGHT_BOTTOM   = 7,
  55         EXIF_ORIENTATION_LEFT_BOTTOM    = 8
  56 } ExifOrientationType;
  57 #endif
  58
  59 #define GET_RIGHT_PIXBUF_OFFSET(rc) \
  60         (( (rc->stereo_mode & PR_STEREO_RIGHT) && !(rc->stereo_mode & PR_STEREO_SWAP)) || \
  61          (!(rc->stereo_mode & PR_STEREO_RIGHT) &&  (rc->stereo_mode & PR_STEREO_SWAP)) ?  \
  62           rc->pr->stereo_pixbuf_offset_right : rc->pr->stereo_pixbuf_offset_left )
  63
  64 #define GET_LEFT_PIXBUF_OFFSET(rc) \
  65         ((!(rc->stereo_mode & PR_STEREO_RIGHT) && !(rc->stereo_mode & PR_STEREO_SWAP)) || \
  66          ( (rc->stereo_mode & PR_STEREO_RIGHT) &&  (rc->stereo_mode & PR_STEREO_SWAP)) ?  \
  67           rc->pr->stereo_pixbuf_offset_right : rc->pr->stereo_pixbuf_offset_left )
  68
  69
  70 typedef struct _OverlayData OverlayData;
  71 struct _OverlayData
  72 {
  73         gint id;
  74
  75         GdkPixbuf *pixbuf;
  76         ClutterActor *actor;
  77
  78         gint x;
  79         gint y;
  80
  81         OverlayRendererFlags flags;
  82 };
  83
  84 typedef struct _RendererClutter RendererClutter;
  85
  86 struct _RendererClutter
  87 {
  88         RendererFuncs f;
  89         PixbufRenderer *pr;
  90
  91
  92         gint stereo_mode;
  93         gint stereo_off_x;
  94         gint stereo_off_y;
  95
  96
  97         GList *pending_updates;
  98         gint idle_update;
  99
 100         GList *overlay_list;
 101
 102         GtkWidget *widget; /* widget and stage may be shared with other renderers */
 103         ClutterActor *stage;
 104         ClutterActor *texture;
 105         ClutterActor *group;
 106
 107         gboolean clut_updated;
 108 };
 109
 110 typedef struct _RendererClutterAreaParam RendererClutterAreaParam;
 111 struct _RendererClutterAreaParam {
 112         RendererClutter *rc;
 113         gint x;
 114         gint y;
 115         gint w;
 116         gint h;
 117 };
 118
 119 #define CLUT_SIZE       32
 120
 121 static void rc_set_shader(CoglHandle material)
 122 {
 123   CoglHandle shader;
 124   CoglHandle program;
 125   gint uniform_no;
 126   shader = cogl_create_shader (COGL_SHADER_TYPE_FRAGMENT);
 127   cogl_shader_source (shader,
 128   "vec3 checker(vec2 texc, vec3 color0, vec3 color1)                                            \n"
 129   "{                                                                                            \n"
 130   "  if (mod(int(floor(texc.x) + floor(texc.y)), 2) == 0)                                       \n"
 131   "    return color0;                                                                           \n"
 132   "  else                                                                                       \n"
 133   "    return color1;                                                                           \n"
 134   "}                                                                                            \n"
 135   "                                                                                             \n"
 136   "uniform sampler2D tex;                                                                       \n"
 137   "uniform sampler3D clut;                                                                      \n"
 138   "uniform float scale;                                                                         \n"
 139   "uniform float offset;                                                                        \n"
 140   "                                                                                             \n"
 141   "void main(void)                                                                              \n"
 142   "{                                                                                            \n"
 143   "    vec3 bg = checker(gl_FragCoord.xy / 16, vec3(0.6, 0.6, 0.6), vec3(0.4, 0.4, 0.4));       \n"
 144   "    vec4 img4 = texture2D(tex, gl_TexCoord[0].xy);                                           \n"
 145   "    vec3 img3 = img4.rgb;                                                                    \n"
 146   "    img3 = img3 * scale + offset;                                                            \n"
 147   "    img3 = texture3D(clut, img3);                                                            \n"
 148   "                                                                                             \n"
 149   "    gl_FragColor = vec4(img3 * img4.a + bg * (1.0 - img4.a), 1.0);                           \n"
 150   "}                                                                                            \n"
 151   );
 152   cogl_shader_compile(shader);
 153   gchar *err = cogl_shader_get_info_log(shader);
 154   printf("%s\n",err);
 155   g_free(err);
 156
 157   program = cogl_create_program ();
 158   cogl_program_attach_shader (program, shader);
 159   cogl_handle_unref (shader);
 160   cogl_program_link (program);
 161
 162   uniform_no = cogl_program_get_uniform_location (program, "tex");
 163   cogl_program_set_uniform_1i (program, uniform_no, 0);
 164
 165   uniform_no = cogl_program_get_uniform_location (program, "clut");
 166   cogl_program_set_uniform_1i (program, uniform_no, 1);
 167
 168   uniform_no = cogl_program_get_uniform_location (program, "scale");
 169   cogl_program_set_uniform_1f (program, uniform_no, (double) (CLUT_SIZE - 1) / CLUT_SIZE);
 170
 171   uniform_no = cogl_program_get_uniform_location (program, "offset");
 172   cogl_program_set_uniform_1f (program, uniform_no, 1.0 / (2 * CLUT_SIZE));
 173
 174   cogl_material_set_user_program (material, program);
 175   cogl_handle_unref (program);
 176 }
 177
 178
 179 static void rc_prepare_post_process_lut(RendererClutter *rc)
 180 {
 181         PixbufRenderer *pr = rc->pr;
 182         static guchar clut[CLUT_SIZE * CLUT_SIZE * CLUT_SIZE * 3];
 183         guint r, g, b;
 184         GdkPixbuf *tmp_pixbuf;
 185         CoglHandle material;
 186         CoglHandle tex3d;
 187
 188         DEBUG_0("%s clut start", get_exec_time());
 189
 190         for (r = 0; r < CLUT_SIZE; r++)
 191                 {
 192                 for (g = 0; g < CLUT_SIZE; g++)
 193                         {
 194                         for (b = 0; b < CLUT_SIZE; b++)
 195                                 {
 196                                 guchar *ptr = clut + ((b * CLUT_SIZE + g) * CLUT_SIZE + r) * 3;
 197                                 ptr[0] = floor ((double) r / (CLUT_SIZE - 1) * 255.0 + 0.5);
 198                                 ptr[1] = floor ((double) g / (CLUT_SIZE - 1) * 255.0 + 0.5);
 199                                 ptr[2] = floor ((double) b / (CLUT_SIZE - 1) * 255.0 + 0.5);
 200                                 }
 201                         }
 202                 }
 203         tmp_pixbuf = gdk_pixbuf_new_from_data(clut, GDK_COLORSPACE_RGB, FALSE, 8,
 204                                               CLUT_SIZE * CLUT_SIZE,
 205                                               CLUT_SIZE,
 206                                               CLUT_SIZE * CLUT_SIZE * 3,
 207                                               NULL, NULL);
 208         if (pr->func_post_process)
 209                 {
 210                 pr->func_post_process(pr, &tmp_pixbuf, 0, 0, CLUT_SIZE * CLUT_SIZE, CLUT_SIZE, pr->post_process_user_data);
 211                 }
 212         g_object_unref(tmp_pixbuf);
 213
 214         DEBUG_0("%s clut upload start", get_exec_time());
 215
 216         tex3d = cogl_texture_3d_new_from_data(CLUT_SIZE, CLUT_SIZE, CLUT_SIZE,
 217                                               COGL_TEXTURE_NONE,
 218                                               COGL_PIXEL_FORMAT_RGB_888,
 219                                               COGL_PIXEL_FORMAT_RGB_888,
 220                                               CLUT_SIZE * 3,
 221                                               CLUT_SIZE * CLUT_SIZE * 3,
 222                                               clut,
 223                                               NULL);
 224         material = clutter_texture_get_cogl_material(rc->texture);
 225         cogl_material_set_layer(material, 1, tex3d);
 226         cogl_handle_unref(tex3d);
 227         DEBUG_0("%s clut end", get_exec_time());
 228         rc->clut_updated = TRUE;
 229 }
 230
 231
 232
 233 static void rc_sync_actor(RendererClutter *rc)
 234 {
 235         PixbufRenderer *pr = rc->pr;
 236         gint anchor_x = 0;
 237         gint anchor_y = 0;
 238
 239         clutter_actor_set_anchor_point(CLUTTER_ACTOR(rc->texture), 0, 0);
 240
 241         printf("scale %d %d\n", rc->pr->width, rc->pr->height);
 242         printf("pos   %d %d\n", rc->pr->x_offset, rc->pr->y_offset);
 243
 244         clutter_actor_set_scale(CLUTTER_ACTOR(rc->texture),
 245                                 (gfloat)pr->width / pr->image_width,
 246                                 (gfloat)pr->height / pr->image_height);
 247
 248         switch (pr->orientation)
 249                 {
 250                 case EXIF_ORIENTATION_TOP_LEFT:
 251                         /* normal  */
 252                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 253                                                 CLUTTER_Z_AXIS,
 254                                                 0, 0, 0, 0);
 255                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 256                                                 CLUTTER_Y_AXIS,
 257                                                 0, 0, 0, 0);
 258                         anchor_x = 0;
 259                         anchor_y = 0;
 260                         break;
 261                 case EXIF_ORIENTATION_TOP_RIGHT:
 262                         /* mirrored */
 263                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 264                                                 CLUTTER_Z_AXIS,
 265                                                 0, 0, 0, 0);
 266                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 267                                                 CLUTTER_Y_AXIS,
 268                                                 180, 0, 0, 0);
 269                         anchor_x = pr->width;
 270                         anchor_y = 0;
 271                         break;
 272                 case EXIF_ORIENTATION_BOTTOM_RIGHT:
 273                         /* upside down */
 274                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 275                                                 CLUTTER_Z_AXIS,
 276                                                 180, 0, 0, 0);
 277                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 278                                                 CLUTTER_Y_AXIS,
 279                                                 0, 0, 0, 0);
 280                         anchor_x = pr->width;
 281                         anchor_y = pr->height;
 282                         break;
 283                 case EXIF_ORIENTATION_BOTTOM_LEFT:
 284                         /* flipped */
 285                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 286                                                 CLUTTER_Z_AXIS,
 287                                                 180, 0, 0, 0);
 288                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 289                                                 CLUTTER_Y_AXIS,
 290                                                 180, 0, 0, 0);
 291                         anchor_x = 0;
 292                         anchor_y = pr->height;
 293                         break;
 294                 case EXIF_ORIENTATION_LEFT_TOP:
 295                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 296                                                 CLUTTER_Z_AXIS,
 297                                                 -90, 0, 0, 0);
 298                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 299                                                 CLUTTER_Y_AXIS,
 300                                                 180, 0, 0, 0);
 301                         anchor_x = 0;
 302                         anchor_y = 0;
 303                         break;
 304                 case EXIF_ORIENTATION_RIGHT_TOP:
 305                         /* rotated -90 (270) */
 306                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 307                                                 CLUTTER_Z_AXIS,
 308                                                 -90, 0, 0, 0);
 309                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 310                                                 CLUTTER_Y_AXIS,
 311                                                 0, 0, 0, 0);
 312                         anchor_x = 0;
 313                         anchor_y = pr->height;
 314                         break;
 315                 case EXIF_ORIENTATION_RIGHT_BOTTOM:
 316                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 317                                                 CLUTTER_Z_AXIS,
 318                                                 90, 0, 0, 0);
 319                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 320                                                 CLUTTER_Y_AXIS,
 321                                                 180, 0, 0, 0);
 322                         anchor_x = pr->width;
 323                         anchor_y = pr->height;
 324                         break;
 325                 case EXIF_ORIENTATION_LEFT_BOTTOM:
 326                         /* rotated 90 */
 327                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 328                                                 CLUTTER_Z_AXIS,
 329                                                 90, 0, 0, 0);
 330                         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->texture),
 331                                                 CLUTTER_Y_AXIS,
 332                                                 0, 0, 0, 0);
 333                         anchor_x = pr->width;
 334                         anchor_y = 0;
 335                         break;
 336                 default:
 337                         /* The other values are out of range */
 338                         break;
 339                 }
 340
 341         clutter_actor_set_position(CLUTTER_ACTOR(rc->texture),
 342                                 pr->x_offset - pr->x_scroll + anchor_x,
 343                                 pr->y_offset - pr->y_scroll + anchor_y);
 344
 345 }
 346
 347
 348 static void renderer_area_clip_add(RendererClutter *rc, gfloat x, gfloat y, gfloat w, gfloat h)
 349 {
 350         PixbufRenderer *pr = rc->pr;
 351         gfloat x2, y2;
 352         gfloat clip_x, clip_y, clip_w, clip_h, clip_x2, clip_y2;
 353
 354         x2 = x + w;
 355         y2 = y + h;
 356
 357         clutter_actor_get_clip(rc->texture, &clip_x, &clip_y, &clip_w, &clip_h);
 358
 359         clip_x2 = clip_x + clip_w;
 360         clip_y2 = clip_y + clip_h;
 361
 362         if (clip_x > x) clip_x = x;
 363         if (clip_x2 < x2) clip_x2 = x2;
 364         if (clip_y > y) clip_y = y;
 365         if (clip_y2 < y2) clip_y2 = y2;
 366
 367         clip_w = clip_x2 - clip_x;
 368         clip_h = clip_y2 - clip_y;
 369
 370         printf("clip %f %f %f %f\n", clip_x, clip_y, clip_w, clip_h);
 371         clutter_actor_set_clip(rc->texture, clip_x, clip_y, clip_w, clip_h);
 372 }
 373
 374 #define MAX_REGION_AREA (32768 * 1024)
 375
 376 static gboolean renderer_area_changed_cb(gpointer data)
 377 {
 378         RendererClutter *rc = (RendererClutter *)data;
 379         PixbufRenderer *pr = rc->pr;
 380
 381         RendererClutterAreaParam *par = rc->pending_updates->data;
 382
 383         gint h = MAX_REGION_AREA / par->w;
 384         if (h == 0) h = 1;
 385         if (h > par->h) h = par->h;
 386
 387
 388         printf("renderer_area_changed_cb %d %d %d %d  (%d)\n", par->x, par->y, par->w, h, par->h);
 389         DEBUG_0("%s upload start", get_exec_time());
 390         if (pr->pixbuf)
 391                 {
 392                 CoglHandle texture = clutter_texture_get_cogl_texture(CLUTTER_TEXTURE(rc->texture));
 393
 394                 cogl_texture_set_region(texture,
 395                                         par->x + GET_RIGHT_PIXBUF_OFFSET(rc),
 396                                         par->y,
 397                                         par->x,
 398                                         par->y,
 399                                         par->w,
 400                                         h,
 401                                         par->w,
 402                                         h,
 403                                         gdk_pixbuf_get_has_alpha(pr->pixbuf) ? COGL_PIXEL_FORMAT_RGBA_8888 : COGL_PIXEL_FORMAT_RGB_888,
 404                                         gdk_pixbuf_get_rowstride(pr->pixbuf),
 405                                         gdk_pixbuf_get_pixels(pr->pixbuf));
 406                 }
 407         DEBUG_0("%s upload end", get_exec_time());
 408         renderer_area_clip_add(rc, par->x, par->y, par->w, h);
 409
 410
 411         par->y += h;
 412         par->h -= h;
 413
 414         if (par->h == 0)
 415                 {
 416                 rc->pending_updates = g_list_remove(rc->pending_updates, par);
 417                 g_free(par);
 418                 }
 419         if (!rc->pending_updates)
 420                 {
 421                 clutter_actor_queue_redraw(CLUTTER_ACTOR(rc->texture));
 422                 rc->idle_update = 0;
 423
 424                 /* FIXME: find a better place for this */
 425                 if (!rc->clut_updated) rc_prepare_post_process_lut(rc);
 426
 427                 return FALSE;
 428                 }
 429         return TRUE;
 430 }
 431
 432
 433 static void renderer_area_changed(void *renderer, gint src_x, gint src_y, gint src_w, gint src_h)
 434 {
 435         RendererClutter *rc = (RendererClutter *)renderer;
 436         PixbufRenderer *pr = rc->pr;
 437         RendererClutterAreaParam *par;
 438
 439         gint width = gdk_pixbuf_get_width(pr->pixbuf);
 440         gint height = gdk_pixbuf_get_height(pr->pixbuf);
 441
 442         if (pr->stereo_data == STEREO_PIXBUF_SBS || pr->stereo_data == STEREO_PIXBUF_CROSS)
 443                         {
 444                         width /= 2;
 445                         }
 446
 447         if (!pr_clip_region(src_x, src_y, src_w, src_h,
 448                             GET_RIGHT_PIXBUF_OFFSET(rc), 0, width, height,
 449                             &src_x, &src_y, &src_w, &src_h)) return;
 450
 451         par = g_new0(RendererClutterAreaParam, 1);
 452         par->rc = rc;
 453         par->x = src_x - GET_RIGHT_PIXBUF_OFFSET(rc);
 454         par->y = src_y;
 455         par->w = src_w;
 456         par->h = src_h;
 457         rc->pending_updates = g_list_append(rc->pending_updates, par);
 458         if (!rc->idle_update)
 459                 {
 460                 rc->idle_update = g_idle_add_full(G_PRIORITY_DEFAULT_IDLE, renderer_area_changed_cb, rc, NULL);
 461                 }
 462 }
 463
 464 static void renderer_remove_pending_updates(RendererClutter *rc)
 465 {
 466         if (rc->idle_update) g_idle_remove_by_data(rc);
 467         rc->idle_update = 0;
 468         while (rc->pending_updates)
 469                 {
 470                 RendererClutterAreaParam *par = rc->pending_updates->data;
 471                 rc->pending_updates = g_list_remove(rc->pending_updates, par);
 472                 g_free(par);
 473                 }
 474 }
 475
 476 static void renderer_update_pixbuf(void *renderer, gboolean lazy)
 477 {
 478         RendererClutter *rc = (RendererClutter *)renderer;
 479         PixbufRenderer *pr = rc->pr;
 480
 481         renderer_remove_pending_updates(rc);
 482
 483         if (pr->pixbuf)
 484                 {
 485                 gint width = gdk_pixbuf_get_width(pr->pixbuf);
 486                 gint height = gdk_pixbuf_get_height(pr->pixbuf);
 487
 488                 gint prev_width, prev_height;
 489
 490                 if (pr->stereo_data == STEREO_PIXBUF_SBS || pr->stereo_data == STEREO_PIXBUF_CROSS)
 491                         {
 492                         width /= 2;
 493                         }
 494
 495
 496                 printf("renderer_update_pixbuf\n");
 497                 clutter_texture_get_base_size(CLUTTER_TEXTURE(rc->texture), &prev_width, &prev_height);
 498                 printf("change from %d %d to %d %d\n", prev_width, prev_height, width, height);
 499
 500                 if (width != prev_width || height != prev_height)
 501                         {
 502                         /* FIXME use CoglMaterial with multiple textures for background, color management, anaglyph, ... */
 503                         CoglHandle texture = cogl_texture_new_with_size(width,
 504                                                                         height,
 505                                                                         COGL_TEXTURE_NO_AUTO_MIPMAP,
 506                                                                         gdk_pixbuf_get_has_alpha(pr->pixbuf) ? COGL_PIXEL_FORMAT_RGBA_8888 : COGL_PIXEL_FORMAT_RGB_888);
 507
 508                         if (texture != COGL_INVALID_HANDLE)
 509                                 {
 510                                 clutter_texture_set_cogl_texture(CLUTTER_TEXTURE(rc->texture), texture);
 511                                 cogl_handle_unref(texture);
 512                                 }
 513                         }
 514                 clutter_actor_set_clip(rc->texture, 0, 0, 0, 0); /* visible area is extended as area_changed events arrive */
 515                 if (!lazy)
 516                         {
 517                         renderer_area_changed(renderer, GET_RIGHT_PIXBUF_OFFSET(rc), 0, width, height);
 518                         }
 519                 }
 520
 521         rc->clut_updated = FALSE;
 522         printf("renderer_update_pixbuf\n");
 523         rc_sync_actor(rc);
 524 }
 525
 526
 527
 528 static void renderer_update_zoom(void *renderer, gboolean lazy)
 529 {
 530         RendererClutter *rc = (RendererClutter *)renderer;
 531         PixbufRenderer *pr = rc->pr;
 532
 533         printf("renderer_update_zoom\n");
 534         rc_sync_actor(rc);
 535 }
 536
 537 static void renderer_invalidate_region(void *renderer, gint x, gint y, gint w, gint h)
 538 {
 539 }
 540
 541 static OverlayData *rc_overlay_find(RendererClutter *rc, gint id)
 542 {
 543         GList *work;
 544
 545         work = rc->overlay_list;
 546         while (work)
 547                 {
 548                 OverlayData *od = work->data;
 549                 work = work->next;
 550
 551                 if (od->id == id) return od;
 552                 }
 553
 554         return NULL;
 555 }
 556
 557 static void rc_overlay_actor_destroy_cb(ClutterActor *actor, gpointer user_data)
 558 {
 559         OverlayData *od = user_data;
 560         od->actor = NULL;
 561 }
 562
 563 static void rc_overlay_free(RendererClutter *rc, OverlayData *od)
 564 {
 565         rc->overlay_list = g_list_remove(rc->overlay_list, od);
 566
 567         if (od->pixbuf) g_object_unref(G_OBJECT(od->pixbuf));
 568         if (od->actor) clutter_actor_destroy(od->actor);
 569         g_free(od);
 570 }
 571
 572 static void rc_overlay_update_position(RendererClutter *rc, OverlayData *od)
 573 {
 574         gint px, py, pw, ph;
 575
 576         pw = gdk_pixbuf_get_width(od->pixbuf);
 577         ph = gdk_pixbuf_get_height(od->pixbuf);
 578         px = od->x;
 579         py = od->y;
 580
 581         if (od->flags & OVL_RELATIVE)
 582                 {
 583                 if (px < 0) px = rc->pr->viewport_width - pw + px;
 584                 if (py < 0) py = rc->pr->viewport_height - ph + py;
 585                 }
 586         if (od->actor) clutter_actor_set_position(od->actor, px, py);
 587 }
 588
 589 static void rc_overlay_update_positions(RendererClutter *rc)
 590 {
 591         GList *work;
 592
 593         work = rc->overlay_list;
 594         while (work)
 595                 {
 596                 OverlayData *od = work->data;
 597                 work = work->next;
 598
 599                 rc_overlay_update_position(rc, od);
 600                 }
 601 }
 602
 603 static void rc_overlay_free_all(RendererClutter *rc)
 604 {
 605         GList *work;
 606
 607         work = rc->overlay_list;
 608         while (work)
 609                 {
 610                 OverlayData *od = work->data;
 611                 work = work->next;
 612
 613                 rc_overlay_free(rc, od);
 614                 }
 615 }
 616
 617
 618 static void renderer_overlay_draw(void *renderer, gint x, gint y, gint w, gint h)
 619 {
 620 }
 621
 622 static gint renderer_overlay_add(void *renderer, GdkPixbuf *pixbuf, gint x, gint y, OverlayRendererFlags flags)
 623 {
 624         RendererClutter *rc = (RendererClutter *)renderer;
 625         PixbufRenderer *pr = rc->pr;
 626         OverlayData *od;
 627         gint id;
 628
 629         g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), -1);
 630         g_return_val_if_fail(pixbuf != NULL, -1);
 631
 632         id = 1;
 633         while (rc_overlay_find(rc, id)) id++;
 634
 635         od = g_new0(OverlayData, 1);
 636         od->id = id;
 637         od->pixbuf = pixbuf;
 638         g_object_ref(G_OBJECT(od->pixbuf));
 639         od->x = x;
 640         od->y = y;
 641         od->flags = flags;
 642
 643         od->actor = gtk_clutter_texture_new();
 644         g_signal_connect (od->actor, "destroy", G_CALLBACK(rc_overlay_actor_destroy_cb), od);
 645
 646         gtk_clutter_texture_set_from_pixbuf(GTK_CLUTTER_TEXTURE (od->actor), pixbuf, NULL);
 647         clutter_container_add_actor(CLUTTER_CONTAINER(rc->group), od->actor);
 648
 649         rc->overlay_list = g_list_append(rc->overlay_list, od);
 650         rc_overlay_update_position(rc, od);
 651
 652         return od->id;
 653 }
 654
 655 static void renderer_overlay_set(void *renderer, gint id, GdkPixbuf *pixbuf, gint x, gint y)
 656 {
 657         RendererClutter *rc = (RendererClutter *)renderer;
 658         PixbufRenderer *pr = rc->pr;
 659         OverlayData *od;
 660
 661         g_return_if_fail(IS_PIXBUF_RENDERER(pr));
 662
 663         od = rc_overlay_find(rc, id);
 664         if (!od) return;
 665
 666         if (pixbuf)
 667                 {
 668                 g_object_ref(G_OBJECT(pixbuf));
 669                 g_object_unref(G_OBJECT(od->pixbuf));
 670                 od->pixbuf = pixbuf;
 671
 672                 od->x = x;
 673                 od->y = y;
 674
 675                 if (od->actor) gtk_clutter_texture_set_from_pixbuf(GTK_CLUTTER_TEXTURE(od->actor), pixbuf, NULL);
 676                 rc_overlay_update_position(rc, od);
 677                 }
 678         else
 679                 {
 680                 rc_overlay_free(rc, od);
 681                 }
 682 }
 683
 684 static gboolean renderer_overlay_get(void *renderer, gint id, GdkPixbuf **pixbuf, gint *x, gint *y)
 685 {
 686         RendererClutter *rc = (RendererClutter *)renderer;
 687
 688         PixbufRenderer *pr = rc->pr;
 689         OverlayData *od;
 690
 691         g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
 692
 693         od = rc_overlay_find(rc, id);
 694         if (!od) return FALSE;
 695
 696         if (pixbuf) *pixbuf = od->pixbuf;
 697         if (x) *x = od->x;
 698         if (y) *y = od->y;
 699
 700         return TRUE;
 701 }
 702
 703
 704 static void renderer_update_sizes(void *renderer)
 705 {
 706         RendererClutter *rc = (RendererClutter *)renderer;
 707         ClutterColor stage_color = { 0x00, 0x00, 0x00, 0xff };
 708
 709         rc->stereo_off_x = 0;
 710         rc->stereo_off_y = 0;
 711
 712         if (rc->stereo_mode & PR_STEREO_RIGHT)
 713                 {
 714                 if (rc->stereo_mode & PR_STEREO_HORIZ)
 715                         {
 716                         rc->stereo_off_x = rc->pr->viewport_width;
 717                         }
 718                 else if (rc->stereo_mode & PR_STEREO_VERT)
 719                         {
 720                         rc->stereo_off_y = rc->pr->viewport_height;
 721                         }
 722                 else if (rc->stereo_mode & PR_STEREO_FIXED)
 723                         {
 724                         rc->stereo_off_x = rc->pr->stereo_fixed_x_right;
 725                         rc->stereo_off_y = rc->pr->stereo_fixed_y_right;
 726                         }
 727                 }
 728         else
 729                 {
 730                 if (rc->stereo_mode & PR_STEREO_FIXED)
 731                         {
 732                         rc->stereo_off_x = rc->pr->stereo_fixed_x_left;
 733                         rc->stereo_off_y = rc->pr->stereo_fixed_y_left;
 734                         }
 735                 }
 736         DEBUG_1("update size: %p  %d %d   %d %d", rc, rc->stereo_off_x, rc->stereo_off_y, rc->pr->viewport_width, rc->pr->viewport_height);
 737
 738         printf("renderer_update_sizes  scale %d %d\n", rc->pr->width, rc->pr->height);
 739
 740         clutter_stage_set_color(CLUTTER_STAGE(rc->stage), &stage_color);
 741
 742
 743         clutter_actor_set_size(rc->group, rc->pr->viewport_width, rc->pr->viewport_height);
 744         clutter_actor_set_position(rc->group, rc->stereo_off_x, rc->stereo_off_y);
 745
 746         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->group),
 747                                                 CLUTTER_Y_AXIS,
 748                                                 (rc->stereo_mode & PR_STEREO_MIRROR) ? 180 : 0,
 749                                                 rc->pr->viewport_width / 2.0, 0, 0);
 750
 751         clutter_actor_set_rotation(CLUTTER_ACTOR(rc->group),
 752                                                 CLUTTER_X_AXIS,
 753                                                 (rc->stereo_mode & PR_STEREO_FLIP) ? 180 : 0,
 754                                                 0, rc->pr->viewport_height / 2.0, 0);
 755
 756         rc_sync_actor(rc);
 757         rc_overlay_update_positions(rc);
 758 }
 759
 760 static void renderer_scroll(void *renderer, gint x_off, gint y_off)
 761 {
 762         printf("renderer_scroll\n");
 763         RendererClutter *rc = (RendererClutter *)renderer;
 764         PixbufRenderer *pr = rc->pr;
 765
 766         rc_sync_actor(rc);
 767 }
 768
 769 static void renderer_stereo_set(void *renderer, gint stereo_mode)
 770 {
 771         RendererClutter *rc = (RendererClutter *)renderer;
 772
 773         rc->stereo_mode = stereo_mode;
 774 }
 775
 776 static void renderer_free(void *renderer)
 777 {
 778         RendererClutter *rc = (RendererClutter *)renderer;
 779         GtkWidget *widget = gtk_bin_get_child(GTK_BIN(rc->pr));
 780
 781         renderer_remove_pending_updates(rc);
 782
 783         rc_overlay_free_all(rc);
 784
 785         if (widget)
 786                 {
 787                 /* widget still exists */
 788                 clutter_actor_destroy(rc->group);
 789                 if (clutter_group_get_n_children(CLUTTER_GROUP(rc->stage)) == 0)
 790                         {
 791                         printf("destroy %p\n", rc->widget);
 792                         /* this was the last user */
 793                         gtk_widget_destroy(rc->widget);
 794                         }
 795                 else
 796                         {
 797                         printf("keep %p\n", rc->widget);
 798                         g_object_unref(G_OBJECT(rc->widget));
 799                         }
 800                 }
 801         g_free(rc);
 802 }
 803
 804 RendererFuncs *renderer_clutter_new(PixbufRenderer *pr)
 805 {
 806         RendererClutter *rc = g_new0(RendererClutter, 1);
 807
 808         rc->pr = pr;
 809
 810         rc->f.area_changed = renderer_area_changed;
 811         rc->f.update_pixbuf = renderer_update_pixbuf;
 812         rc->f.free = renderer_free;
 813         rc->f.update_zoom = renderer_update_zoom;
 814         rc->f.invalidate_region = renderer_invalidate_region;
 815         rc->f.scroll = renderer_scroll;
 816         rc->f.update_sizes = renderer_update_sizes;
 817
 818
 819         rc->f.overlay_add = renderer_overlay_add;
 820         rc->f.overlay_set = renderer_overlay_set;
 821         rc->f.overlay_get = renderer_overlay_get;
 822         rc->f.overlay_draw = renderer_overlay_draw;
 823
 824         rc->f.stereo_set = renderer_stereo_set;
 825
 826
 827         rc->stereo_mode = 0;
 828         rc->stereo_off_x = 0;
 829         rc->stereo_off_y = 0;
 830
 831         rc->idle_update = 0;
 832         rc->pending_updates = NULL;
 833
 834         rc->widget = gtk_bin_get_child(GTK_BIN(rc->pr));
 835
 836         if (rc->widget)
 837                 {
 838                 if (!GTK_CLUTTER_IS_EMBED(rc->widget))
 839                         {
 840                         g_free(rc);
 841                         DEBUG_0("pixbuf renderer has a child of other type than gtk_clutter_embed");
 842                         return NULL;
 843                         }
 844                 }
 845         else
 846                 {
 847                 rc->widget = gtk_clutter_embed_new();
 848                 gtk_container_add(GTK_CONTAINER(rc->pr), rc->widget);
 849                 }
 850
 851         gtk_event_box_set_above_child (GTK_EVENT_BOX(rc->pr), TRUE);
 852         rc->stage = gtk_clutter_embed_get_stage (GTK_CLUTTER_EMBED (rc->widget));
 853
 854         rc->group = clutter_group_new();
 855         clutter_container_add_actor(CLUTTER_CONTAINER(rc->stage), rc->group);
 856         clutter_actor_set_clip_to_allocation(CLUTTER_ACTOR(rc->group), TRUE);
 857
 858         rc->texture = clutter_texture_new ();
 859         clutter_container_add_actor(CLUTTER_CONTAINER(rc->group), rc->texture);
 860         rc_set_shader(clutter_texture_get_cogl_material(rc->texture));
 861         g_object_ref(G_OBJECT(rc->widget));
 862
 863         gtk_widget_show(rc->widget);
 864         return (RendererFuncs *) rc;
 865 }
 866
 867 #endif
 868 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */